Yes, the Artifact Of The Damned. I took the Summon Sphere over at Realm 667 and added some code to the DECORATE lump, as well as some sprites. The Bruiser Demon is included in this WAD, as well. It is replaced with a friendly demon, so they should not be used in conjunction.

This is an inventory item that, when used, shoots out a red fireball. This fireball creates a red flame and a Bruiser Demon. It also spits out around 8 fireballs that go in all directions. These spawn imps. It's pretty cool, really.